of jjeicester



ipsa Wma Op LEIGESTER, pASAGHUsppTS .BRICK-rapes! Speepeatpe pf Lettere Peppe# Np! 3,942, dated Merch 1.2, 1845 T (all w/LQm t may concern;

Be it known that I, JOHN WAITE, of Leicester, in the county of 'Worcester and State of Massachusetts, have invented a new and useful Improvement in Machinery for1 Pressing or Forming Bricks, and that the following description and accompanying drawings, taken 1n connection, constitute a j full and exact specification of the construeV tion and operation of the same.

Figure 1 of the drawings above mentioned represents a top view of my improved brick machine. Fig. 2 is a fro-nt elevation thereof. Fig. 3 is a side elevation and Fig. 4 is a vertical transverse section taken through the compressing and discharging pistons, etc.

A long bench or platform A Figs. l, 2, 3, 4, projecting from a frame B serves to. support the brick mold C, which is placed on one end of it and moved toward the other end thereof as will he hereinafter explained.

A hopper or clay conductor D is placed over the bench and on one side of the upper of two compressing pistons E E the bo-ttom of the said hopper being at such a distance from the top of the bench, as to permit the brick mold tojjust pass freely between them. The brick mold consists of a rectangular frame C having a series of rectangular compartments a, a, a, &c., arranged side by side and through it as seen in the` drawing, each of the said compartments corresponding in its horizontal section with that of a brick to be made while in its depth it is sufficient to receive the quantity of clay required for the formation of a brick.

The two compressing pistons E F are arranged the one directly over the other, the lower one playing through thevbench A, and when depressed to its lowest position its upper surface is inthe plane of the top of the bench.` Each of these pistons is jointed `to the end of one of two levers H l which Vplay upon fulcra, at the ends of arms K L as seen in the drawings, the lower ends of the said arms being jointed to the frame, so that they, the arms, may move a little when the pistons approach or recede from each other, the same being for the purpose of allowing the pistons to move in a vertical direction.

The pisto-ns are operated by toggle joints M N which are moved by a connecting rod O and a crank P placed on one end of aV driving shaft Q, which is put in motion by Steam el* other proper pover applied t0 a driving .pllpy R Situated upon the `other @ed @fthe `Shaft e discharging piston S iS placed by .the side of, or little in the advance of the compressing pistons as seen in the drawings, and so that when the compressing pistons approach each other and enter one o-f the compartments of the mold, the said discharge piston shall enter the succeeding compartment thereof or the one beneath it and force out the brick previously formed,

the said brick dropping through a suitable passage orifice T cut vertically through the bench immediately below the discharging piston. The discharging piston is worked like the other pistons by a lever V the said lever being moved by an eccentric upon the driving shaft and a connecting rod, V, eX'- tending between them, the same being represented in Fig. 3 by blue lines.

Fig. 5 represents a view of the rear side of one of the molds, there being fixed upon the said rear side a tortled rack, W, having its teeth arranged and formed asI seen in the drawings. Into t-he said rack a catch X a view of which as detached from the machine is given in Fig. (i) upon the end of a horizontal slidingrack bar Y, plays and so operates therewithV at regular and proper intervals of time as to draw the mold forward or cause it to advance between the pistons (immediately after the compressing pistons have receded from each other so far as to pass out of the mold) so as to bring the preceding compartment of the mold into the position required for the pistons to press the neXt brick.

The rack bar Y, has a reciprocating rectilinear or proper movement given to it by a pinion Z, which operates i'n it and which is operated by another rack bar a whose teeth engage with the pinion and whose end nearest the driving pulley is jointed to the end of a curved lever ZJ', c', CZ', which moves on a fulcrum at c', placed beneath the driving shaft and represented in Fig. 3 by dotted lines. j

A cam or projection e, extending from the driving shaft, strikes (when the said shaft revolves) first against the arm b, c, of the curved lever so as to force it forward and next against the arm c', fZ, so as to force it backward, thus causing the lever to o have a reciprocating motion on its fuicrum the mold the brick which had next previously been formed, the mold being progressively moved forward at regular intervals of time so as to present that compartment of it in which the brick has been compressed to the action of the discharging piston, When the compressing pistons next enter the preceding apartment to effect the formation of a brick therein.

n testimony that the above is a correct specification I have hereto set my signature this tWenty-siXth day of October A. D. 1844. 25

JGHN VAITE.

Vitnesses: V

HORACE PATTERSON, JAMES M. S'roDDARD. 

